Selected article for: "index case and regression analysis"

Author: Calvet, Guilherme Amaral; Pereira, Sandro Antonio; Ogrzewalska, Maria; Pauvolid-Corrêa, Alex; Resende, Paola Cristina; Tassinari, Wagner de Souza; Costa, Anielle de Pina; Keidel, Lucas Oliveira; da Rocha, Alice Sampaio Barreto; da Silva, Michele Fernanda Borges; dos Santos, Shanna Araujo; Lima, Ana Beatriz Machado; de Moraes, Isabella Campos Vargas; Mendes Junior, Artur Augusto Velho; Souza, Thiago das Chagas; Martins, Ezequias Batista; Ornellas, Renato Orsini; Corrêa, Maria Lopes; Antonio, Isabela Maria da Silva; Guaraldo, Lusiele; Motta, Fernando do Couto; Brasil, Patrícia; Siqueira, Marilda Mendonça; Gremião, Isabella Dib Ferreira; Menezes, Rodrigo Caldas
Title: Investigation of SARS-CoV-2 infection in dogs and cats of humans diagnosed with COVID-19 in Rio de Janeiro, Brazil
  • Cord-id: 7jybbtk6
  • Document date: 2021_4_28
  • ID: 7jybbtk6
    Snippet: BACKGROUND: Infection by SARS-CoV-2 in domestic animals has been related to close contact with humans diagnosed with COVID-19. Objectives: To assess the exposure, infection, and persistence by SARS-CoV-2 of dogs and cats living in the same households of humans that tested positive for SARS-CoV-2, and to investigate clinical and laboratory alterations associated with animal infection. METHODS: Animals living with COVID-19 patients were longitudinally followed and had nasopharyngeal/oropharyngeal
    Document: BACKGROUND: Infection by SARS-CoV-2 in domestic animals has been related to close contact with humans diagnosed with COVID-19. Objectives: To assess the exposure, infection, and persistence by SARS-CoV-2 of dogs and cats living in the same households of humans that tested positive for SARS-CoV-2, and to investigate clinical and laboratory alterations associated with animal infection. METHODS: Animals living with COVID-19 patients were longitudinally followed and had nasopharyngeal/oropharyngeal and rectal swabs collected and tested for SARS-CoV-2. Additionally, blood samples were collected for laboratory analysis, and plaque reduction neutralization test (PRNT(90)) to investigate specific SARS-CoV-2 antibodies. RESULTS: Between May and October 2020, 39 pets (29 dogs and 10 cats) of 21 patients were investigated. Nine dogs (31%) and four cats (40%) from 10 (47.6%) households were infected with or seropositive for SARS-CoV-2. Animals tested positive from 11 to 51 days after the human index COVID-19 case onset of symptoms. Three dogs tested positive twice within 14, 30, and 31 days apart. SARS-CoV-2 neutralizing antibodies were detected in one dog (3.4%) and two cats (20%). In this study, six out of thirteen animals either infected with or seropositive for SARS-CoV-2 have developed mild but reversible signs of the disease. Using logistic regression analysis, neutering, and sharing bed with the ill owner were associated with pet infection. CONCLUSIONS: The presence and persistence of SARS-CoV-2 infection have been identified in dogs and cats from households with human COVID-19 cases in Rio de Janeiro, Brazil. People with COVID-19 should avoid close contact with their pets during the time of their illness.

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